When traveling in our 24' C {Nexus Phantom - which has the proper psi, alignment and loading}, winds up to 35 mph are nothing but a mild aggravation which requires little more than one handed steering. Above 35 I will start to look for a comfortable place to get off the road until it lays down. Rode out 35 to 45 gusting over 50 for 3 days last month at the Riverside RV Park in Laughlin.
With the internet, smart phones and detailed weather forecasting readily available just about everywhere there is really no reason to get caught in anything more. We crossed Tornado Alley twice on a cross country trip and were able to dodge a number of serious storms and fronts. Frankly I was more concerned with the potential for hail damage than high winds. If it's too windy you just park but there aren't many places you can get out of the hail.
:C